I am a 60 yr old woman and I have had a chronic cough that makes me feel lightheaded like I m going to pass out every time I cough for 6 - 7 months day and night. The coughing comes on suddenly, almost a spasm. I have other health issues: type 2 diabetes (on insulin), peripheral neuropathy and have recently been diagnosed with autonomic neuropathy, chronic fatigue, hypothyroidism, hypertension and am on many medications to treat these conditions. My doc has taken chest xrays ( clear) and has listened to my lungs that to him sound clear. He doesn t seem concerned. I have a family history of heart disease and I m afraid that there is something else going on. What do I do next?